Micron 32GB DDR5-4800 ECC RDIMM 2Rx8 — MTC20C2085S1EC48BA1

The Micron MTC20C2085S1EC48BA1 is a 32GB DDR5-4800 ECC Registered DIMM (RDIMM) in 288-pin form factor operating at 4800MHz (PC5-38400) with CL40 latency at 1.1V. Configured as Dual Rank x8 it delivers reliable ECC-protected server memory for 5th Gen Intel Xeon Scalable and AMD EPYC platforms requiring DDR5 capacity and bandwidth.

Key Features

• 32GB capacity — DDR5 ECC RDIMM for server platforms
• DDR5-4800 (PC5-38400) — base DDR5 server speed
• ECC Registered — error correction and registered buffer for server reliability
• Dual Rank x8 (2Rx8) — higher density per DIMM slot
• CL40 latency at 1.1V
• 288-pin DIMM — standard server memory form factor
• Micron genuine server memory

Product Specifications

• Part Number: MTC20C2085S1EC48BA1
• Manufacturer: Micron
• OEM Status: Genuine Micron
• Capacity: 32GB
• Type: DDR5 ECC RDIMM
• Speed: 4800MHz (PC5-38400)
• CAS Latency: CL40
• Voltage: 1.1V
• Ranks x Width: 2Rx8
• Pins: 288-pin

Memory Specifications

• Capacity: 32GB
• DDR Generation: DDR5
• Speed: 4800MHz
• PC Rating: PC5-38400
• CAS Latency: CL40
• Voltage: 1.1V
• ECC: Yes
• Buffered: Registered (RDIMM)
• Rank Configuration: 2Rx8 (Dual Rank x8)
• Form Factor: 288-pin DIMM

Performance Specifications

• Bandwidth: PC5-38400 (38.4 GB/s theoretical)
• On-Die ECC: Yes (DDR5 standard)
• RAS Features: ECC, registered buffer

Use Cases

• Server memory for 5th Gen Intel Xeon Scalable (Emerald Rapids) platforms
• Server memory for 4th Gen Intel Xeon Scalable (Sapphire Rapids) platforms
• AMD EPYC Genoa and Bergamo server deployments
• Virtualization hosts requiring ECC-protected DDR5 memory
• Database servers and enterprise compute requiring reliable server DRAM

Compatibility

• Compatible with DDR5 RDIMM slots on Intel Xeon Scalable (LGA4677) servers
• Compatible with AMD EPYC (SP5) DDR5 server platforms
• Verify server QVL (Qualified Vendor List) before installation
• Not compatible with DDR4 slots or consumer DDR5 platforms

Frequently Asked Questions

What does 2Rx8 mean?

2Rx8 means Dual Rank x8 — the DIMM has two ranks of memory chips with x8 (8-bit wide) DRAM devices. This allows higher capacity per DIMM compared to 1Rx8 single rank configurations.

What is the difference between RDIMM and UDIMM?

RDIMM (Registered DIMM) includes a register buffer between the memory controller and DRAM chips improving signal integrity for multi-DIMM configurations. RDIMMs are required for most server platforms and support higher capacities than UDIMMs.

Is MTC20C2085S1EC48BA1 compatible with consumer DDR5 motherboards?

No. ECC RDIMMs require server platforms with registered memory support. Consumer motherboards do not support registered DDR5 memory.

The Micron MTC20C2085S1EC48BA1 delivers 32GB of DDR5-4800 ECC registered server memory in 2Rx8 configuration — purpose-built for Intel Xeon Scalable and AMD EPYC DDR5 server platforms requiring reliable ECC-protected memory.